Surveys

Underwater operations in progress until further notice by M/V sovereign vicinity 49-34.3N 002-34.3W

HYDROLANT 657/08

issued
2008-04-17 16:04Z
status
cancelled 2008-04-20 12:32Z (archive)
cancels
HYDROLANT 644/08
authority
WZ 599/08 171532Z APR 08.
sea
English Channel
position
49.572, -2.572
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER OPERATIONS IN PROGRESS UNTIL
   FURTHER NOTICE BY M/V SOVEREIGN
   VICINITY 49-34.3N 002-34.3W.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 644/08.

This area · survey operations

581 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now

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Season · when survey operations happen here

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month of issue, all years in the archive

Timeline

Nearby now · within 120 nm

Worldwide now

86 survey operations in force · see all

Surveys

Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations

Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.